While I couldn't want anything more than to present my idea straightforwardly to Runescape
I'm not sure I have any pride in my in-game achievements that only required a lot of hours working. While I'm happy to have reached combat max a while after RS Gold 2007, I don't consider myself proud as it didn’t require a lot of thinking and quick responses, or any other effort. Just patience, time, some persistence, and did I mention time?
Still, 99 Prayer would be my choice should I have the option. Because I was not sure I would ever be able to pay for it when I was a complete noob in 2006-07. 99 Attack was nice too the first time I fought in the year.
My only achievements that I am proud of are those related to PvP, either single or clan playing. I think I was a decent F2P player pre-EoC. It was a joy to discover that my very first gallery had 100+ kills. I uploaded 400-500 kills to Sal's galleries, and numerous tiny topics (including the clan sections war-related topics).
This led to PvP section players calling me Sal’s #1 F2P PKer. (This is the reason why I am a huge fan of my RuneScape King and Witch King titles). It's not that I did anything special, but I do take some pride in the compliments I get regarding my kills.
Additionally, in Sal's Clan Section topic about the ideal clan, I was picked as a member in many clan section users lists and this was something I was proud of since at the time Buy OSRS Accounts, I was just an average level combat player of around 105.